Vaporizing device for internal combustion engines



c. STIMETZ 1,897,344

VAPORIZING DEVICE FOR INTERNAL COMBUSTION ENGINES Feb. 14 1933.

Filed June 11, 1930 IN VENTOR.

CARL STIMETZ.

A TORNEY.

' received over the threads 23.

Patented Feb. 14, 1933 PATENT OFFICE CARL STIMETZ, F CINCINNATI, OHIO VAIORIZING DEVICE FOR INTERNAL COMBUSTION ENGINES Application filed June 11,

This invention relates to a device for feeding vapor to the carburetor of an internal combustion engine to be mixed with the fuel supply passing to the cylinders.

- The object of the invention is to provide a pair of tanks and means for creating a vapor in the headof one of the tanks and means for conveying the vapor to the carburetor.

A further object is to provide means for increasing the flow of the vapor. A still further object is to provide one of the tanks with a vapor expanding chamber and a small cooling chamber. Still further objects reside in the novel construction of parts.

The invention will be further readily understood from the following description and claims and from the drawing, in which latter;

Fig. 1 is a side elevation of the device in connection with an internal combustion engine.

Fig. 2 is a vertical section of the tanks, taken in the plane of the irregular line 2-2 of Fig. 1.

Fig. 3 is a detail section, of the line 3-3 of Fig. 1.

Fig. 4 is a horizontal section of the tanks, taken in the plane of the line 44 of Fig. 2.

Fig. 5 is a detail section of the connection with the air cleaner.

The device is shown in connection with an internal combustion engine 11, which has the usual exhaust manifold 12 and intake manitaken in the plane fold 13. A carburetor 14 is suitably connected to the intake manifold for supplying the proper mix of the fuel drawn into the ex plosion chambers of the engine.

The device comprises a supply tank in the form of a cylinder having a side wall 21 and a bottom 22. The upper end of the cylinder is provided with external threads 23. A cover 24 has a depending flange 25 provided with internal threads 26 arranged to be The cover is provided with a handle 27. The tank is suitably secured to the panel 28, which separates the engine compartment from the driving compartment of the usual automobile, by means of bands 29 received about the tank 1930. Serial No. 460,391.

and secured to the panel as by means of bolts 30 A secondary cylindrical tank 31, having a circular wall 32 and a bottom wall 33, has an enlarged head chamber 34 which forms an expanding chamber provided with a removable cover 35. The cover has an annular depending flange 36 arranged to snugly fit the wall 37 of the chamber. A perforated plate 38 is suitably secured midway between the cover and the wall 39 of the head chamber. The tank is suitably secured to the panel 28 by means of bands 40 received about the tank and provided with extensions 41 arranged to receive bolts 42.

A tube 45 connects the two tanks for forming a passage between the tanks. A tube 46 is connected to the bottom of the tank 20 by means of a clamp nut 47 to prevent leakage. The tube is coiled as at 48 and flattened out against the exhaust manifold, and has a return stretch 49 passing through the bottom of the tank 31 and extends upwardly through the plate 38. A tube 51 extends from the head chamber to the carburetor. The tube is provided with a perforated cap 52 secured to the end of the tube which projects into the head chamber. A clamp nut 53 is received about the tube and threaded into the head chamber for holding the tube in place.

I prefer to use an air cleaner 54 in connection with the air intake 55 of the carburetor. The usual air cleaner comprises a casing 56 provided with a front face 57. The outer portion of the face is provided with angularly set fins 58 arranged to receive the air and cause it to swirl within the casing depositing the dust and other products in the air on the wall of the casing. The cleaned air is drawn into the carburetor through a connecting tube 59. I further provide a baflle 60 connected to the lower portion of the air cleaner as at '61 and provided with a curved face 62 which extends above the air cleaner for increasing the flow of air to the carburetor. The fan 63 of the motor creates a flow of air in the direction of the arrow a which contacts the baffle and diverts the air into the carburetor. The tube 51 extends through the baffle and front face of the air cleaner and is bent slightly downward as at 64 to prevent any water in the tube from entering the carburetor, but will drip down into the bottom of the air cleaner casing and drains out through an opening 65 therein.

The tank 20 is filled with water 69, which water passes through the tube L5 to the tank 31 and seeks its own level therein. The water also fills the tube M5, the coils 48 and the tube 49 to a point in the plane of its own level.

The motor is started and the exhaust manifold becomes heated and conveys the heat to the coils 48. As the waterinthe coils becomes heated it will cause vapor to escape through the tube L9 into the head chamber; The coils become highly heated and the vapor expands as it passes from the coil. The small body of water about the vertical extension of the tube 4:9 cools the vapor to reduce the expansion thereof but not sufi'iciently to condense the same. The engine creates a suction on each stroke of the pistons in the cylinders and this suction draws the vapor through the tube 51 into the carburetor where it is mixed with the combustible fuel and fed to the cylinders. The perforated plate and cap prevents the water in the cylinder from spilling into the tube 51, when the car is driven over rough roads. The chamber 3 provides a space for the vapor to expand and any condensation thereof will return to the cylinder 31.

In cold weather, a proper mixture of glycerine may be put intov the tank 20 together with the water to prevent freezing.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. The combination with an internal combustion engine comprising a carburetor, an exhaust pipe and intake pipe, a water supply tank mounted near said engine, a secondary tank adjacent said supply tank, a passage between said tanks, a tube extending from said supply tank to said secondary tank, a coil in said tube arranged adjacent to a heated part of the engine, said secondary tank provided with an expansion chamber and a tube extending from said expansion chamber to the air intake port of said carburetor.

2. The combination with an internal combustion engine comprising a carburetor, an exhaust pipe and intake pipe, a water supply tank mounted near said engine, a secondbustion engine, exhaust pipe and intake pipe, a water supply tank mounted near said engine, a secondary tank adjacent said supply tank, a tube pro vided with a, coil extending from said supply tank to said secondary tank, said coil adjacent to a heated part of said engine, said secondary tank provided with an expansion chamber, said tube extending through said secondary tank to said expansion chamber, said carburetor provided with an air cleaner about the air intake port, abafile adjacent the intake of said air cleaner, a second tube extending from said expanding chamber into said air cleaner.

4. The combination with an intern'alcombustion engine, comprising a carburetor, an exhaust pipe and intake pipe, a'water supply tank mounted near said engine,- a secondary tank adjacent said supply tank,.a tube provided with a coil extending from said supply tank to said secondary tank, said coil adjacent to a heated part of said engine, said secondary tank provided with an expansion chamber, said tube extending through said secondary tank to said expansion chamber, said carburetor provided with an air cleaner about the air intake port, a baffle adjacent the intake of said air cleaner, a second tube extending from said expansion chamber into said air cleaner, and means for preventing the contents of said secondary tank from entering said second tube. V

5. The combination with an internal combustion engine provided with a carburetor, a water supply tank, a secondary tank, a passage between said tanks, a tube connecting said tanks, a tube extending from said supply tank to a point adjacent to a heated'part of said engine,and a return stretch extending upwardly in said secondary tank, said secondary tank provided with an expansion chamber, a vapor conducting tube extending from said expansion-chamber to the air intake of said carburetor, said last named tube having a bent end adjacent to the carburetor for release of moisture in said tube.

In testimony whereof I have hereunto signed my name.

CARL STIMETZ.

ary tank adjacent said supply tank, a passage between said tanks, a tube extending from said supply tank to said secondary tank, a coil in said tube arranged adjacent to a heated part of the engine, a connection between said tanks, said secondary tank provided with an expansion chamber, and a tube extending from said expansion chamber to the air intake port of said carburetor. ,3. The combination with an internal comcomprising a carburetor, an r 

